Anders andersen pindstofte



(No Model.) p I A. A. PINDSTOFTE.

GAS REGULATOR.

Jin/@111014 Patented June 16, 1896.

Ivo

V chest A, which communicates by the pipe holder, which valve automatically graduates NiTnD STATES PATENT OFFICE.

ANDERS ANDERSEN `lIhTDS'IOFE, OF COPENHAGEN, DENMARK.

GAS-REG u LATO R.

SPECIFICATION forming part 0f Letters Patent N0. 562,340? dated June 16, 1896. Applicatihn led May ll, 1893. Serial No. 473,885. (No model.)

To @ZZ whom it may concern,.-

Be it known that I, ANDERS ANDnRsEN PINDsToFTE, manufacturer, a subject of the King of Denmark, residing at Copenhagen, in the Kingdom of Denmark, have invented certain new and useful Improvements in Gas- Regulators; and I do hereby declare` the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to apparatus for drawing beer or other beverages by means of the pressure of carbonio-acid gas, and it relates to the valve for reducing the pressure of the gas coming from its high-pressure the pressure as required.

The apparatus is, moreover, so constructed that one can at any time find out any leakage by which a part of the carbonio-acid gas might escape.

In the accompanying drawings, Figure lis a vertical section of the valve for reducing the gas-pressure. Fig. 2 is a modified con` struction of the main parts of the valve shown in Fig. l.

The valve-chamber, Fig. l, consists of a connection a with the holder of the carbonicacid gas, and is at its top closed by a domeshapcd cover B, which debouches into a vertical tube C. Between the cover B and the other parts of the chest A is fastened and stretched out a horizontal diaphragm D, made of thin sheet metal, india-rubber or similar material. It carries an upright cylinder E upon its center. Up into the lower end of this cylinder passes a screw a, which is fastened below to the lever I-I. In its upper end the cylinder E holds an upright rod e, surrounded by a spiral spring d. This rod passes through the cover C', which closes the tube C, and said rodterminates above C in a nut F, which by screwing down on rod d, upon the top of tube C, will raise lever H and close valve I, when it maybe desired to stop the fiow of gas entirely. The spiral spring d bears on top against the cover C and at its foot against the cylinder E. The cover C screws up and down in the tube e, to vary the tension of the spring d.

The lever H has two arms at right angles to each other. The screw ct' is fastened to its horizontal arm. This lever is movable around its fulcrum b where it is pivoted to an upright support d. Its lower arm works against a rod t', which carries at its left end .a socketvalve I, supplied with a disk fi', made of indiarubber, which closes the cylindrical mouthpieceK on which the socket is fitted tightly by pressing against it.

By arranging the valve to slide horizontally and introducing the elbow-lever between it and the diaphragm the movable parts may be balanced so that only the friction of the parts has to be overcome whereby the valve is more sensitive.

The carbonio acid flows from the holder, where it is under high pressure, through the channel o and the mouthpiece K into the valve-chamber V, through orifices c', whenever the rubber disk i does not press against K. From the chamber Vthe gas passes by the channel n and the valve m into the pipe p, and thence through the iieXible tube r into the tapping apparatus.

A pressure-gage M, suitably connected with the pipe p, indicates the pressure of the gas in the valve-chamber V. A valve m in the pipe closes said pipe when required.

The spring d normally graduates the opening of lthe valve I, for the required pressure in chamber V, but excessive pressure on diaphragm D causes it to rise and permit the closing of said valve I, whereby the iniiux of carbonio-acid gas is automatically stopped. As long as the pressure is insufficient to so raise the diaphragm the valve I will remain open and more ofthe gas will iiow into V. On account of the large surface of the diaphragm D offered to the gas to act upon, the action of the apparatus will be steady. From the pressure-regulator the carbonio acid passes, by the pipe p and tube r, down into the beerkeg. If the valve fm is now closed, then no more carbonio acid will come into the tapping apparatus, and the gage M will then show whether the apparatus is tight or leaky. If the gage is constant, the apparatus is in order;

IOO

but if the pressure becomes less and less there Will be leakages somewhere, which must be corrected. Vhenever the beer-keg is to be replaced by another, the valve m must first be closed.

Fig. 2 shows a modified construction of the valve for reducing the gas-pressure shown in Fig. l. The lever Hin Fig. 2 has at the lower end of its short arm just below its ulcrum a toothed sector 71. The teeth of the latter engage those of a toothed rack formed on the horizontal bar l. This bar is movable upon its seat or base j. At the left end it has a valve t, to which a rubber face may be fastened. Whenever the diaphragm D, Fig. l, is curved upward by the pressure of the carbonic acid in the chamber V, the valve i", Fig. 2, will be pressed against the mouthn piece K', and thus stop the influx of the gas into V until the pressure is again below the maximum.

l claiml. The combination with the horizontal mouthpiece, horizontal valve working on said piece, and the elbow-lever located in the gaschamber and connected by its vertical arm with the valve, of the diaphragm covering said chamber, the cover of the gas-chamber having the vertical tubular extension, and the adjustable cover of said extension, the

rod connected to the horizontal arm of the lever and to the diaphragm, and extending through said adjustable cover, and the spring interposed between said adjustable cover and the hub of the rod substantially as described.

2. The combination with the horizontal mouthpiece, horizontal socket-valve working on said mouthpiece, and the elbow-lever located in the gas-chamber and connected by its vertical arm with the valve, of the diaphragm covering said chamber, the cover of the gas-chamber having the vertical tubular extension, the adjustable cover in the upper part of said tubular extension, the rod con nected to the horizontal arm of the lever, and to the diaphragm, and extending up through the adjustable cover, the spring interposed between said adjustable cover and the hub of the rod, and the nut on the extension of the rod above said tubular extension and adapted to raise the rod and close the valve by lifting on it and to limit the opening of the valve by resting on the said extension of the cover substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANDERS ANDERSEN PINDS''GFTE. lllitnesses:

CARL GEORG ANDnRsEN, LAURrrz WILHELM RrnLsnN. 

